Ingredient research hub
Hawthorn Berry
What it is
Hawthorn refers to plants in the Crataegus genus. Berry preparations and extracts of other plant parts may have different compositions. The label needs to identify the part and preparation rather than simply using the plant name.
Why people look for it
It appears in circulation-oriented supplements, sometimes alongside nitric-oxide-related ingredients.
What research generally looks at
Cardiovascular research on specific hawthorn extracts does not establish evidence for every berry powder or for a multi-ingredient lozenge.
Important context
Do not treat a blend as a substitute for cardiovascular assessment or medicines. The CircO2 review distinguishes the undisclosed individual amount from the total blend weight.
Related research
Choose a specific evidence question below. Formula reviews provide label context; they do not establish that the complete product reproduces an ingredient study.
Energy
CircO2 Review: What the 420 mg Blend Reveals—and HidesCircO2’s lozenge discloses vitamin C 100 mg, B12 1,000 mcg and a 420 mg total blend. It does not disclose individual beetroot, hawthorn, citrulline or sodium-nitrite amounts, nitrate content, or a separate elemental-magnesium dose. That prevents the dose comparisons central to its nitric-oxide positioning.
Planet Wellness Report · Sep 26, 2026
Related ingredients
Follow the ingredient definitions to compare roles and preparations, rather than treating them as interchangeable products.
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Products containing it
CircO2Advanced Bionutritionals
Lozenge with vitamin C, B12 and a 420 mg proprietary blend of beetroot, hawthorn, L-citrulline and sodium nitrite. Individual blend amounts and a separate elemental-magnesium amount are not declared.
Product inclusion indicates a catalog relationship, not an efficacy endorsement.